Answer:
Explanation:
Circuit breaker is an automatic electrical switch which cuts the power when there is surge in current.
Advantages of Circuit breaker
- They are more reliable i.e. they are not replaced frequently
- Efficient and easy to safeguard electrical appliance
Disadvantage of Circuit breaker
- They are less sensitive than fuses i.e. fuses are much faster than circuit breaker.
It slowly cools an hardens,eventually turning into igneous rock<span />
Answer:
b) 338 N
Explanation: let m be the mass of the gymnast and a be the acceleration of the gymnast.
the force required to accelerate the gymnast is given by:
F = m×a
= (45.0)×(7.50)
= 337.5 N
Therefore, the force a trampoline has to apply is 138 N.
Answer:
the graph shows the cost of natural hazards in the us in 2011 (in billions of dollars)
Explanation:
it shows that the cost of a tornado happeniy is 30 billion dollars
and the cost of an earthquake is way lower than the one the tornado which is 0 dollar
<span>The pythagorean theorem addresses the length of the hypotenuse in relation to the length of the legs. The square root of the length of the hypotenuse is equal to the sum of one leg squared plus the other leg squared. In other words, A squared plus B squared equals C squared where A and B are the lengths of the legs of the triangle and C is the length of the hypotenuse.</span>
